102 results about "Juvenile" patented technology

The invention relates to a Sepia lycidas fry breeding method, belonging to the field of aquatic fry breeding. The method specifically comprises the following five steps of: fishing of parents, temporary culture of the parents, acquisition of eggs, hatching of the eggs and breeding of fries, wherein sexually mature parent Sepia lycidas are selected and put into a water pond, temperature, salinity and stocking density are controlled, the water quality is kept and alive small fish and shrimps are fed for temporary culture; the parents with eggs are put into egg laying ponds in proportion and fertilized eggs are collected periodically; the eggs of the same batch are put into a hatching pond for hatching; embryos to be hatched soon are collected and put into breeding ponds, the area of each breeding pond is 10-15 square meters, the water temperature is 20-30DEG C, the seawater salinity is 25-35, the stocking density is 200-400 fries per square meter, and the fries are fed for the first time after 6-12 hours from the time when the fries are hatched and get out of embryonic membranes; and after the mantle length of the fries is more than 1.5cm, the fry breeding process is completed and the fries are moved out. The breeding method has the advantages of high survival rate, few diseases, rapid growth, easiness in operation and high success rate, and is suitable for large-scale breeding.

The invention discloses a double-harvest-one-year industrialized culture method for octopuses, which comprises the following steps of: cultivating parent octopuses in a strengthened mode, laying eggs, hatching fertilized eggs, cultivating young bodies, cultivating adults at a controlled temperature and the like. The method can stabilize and improve the physical quality of the parent octopuses, reduce mutual killing, effectively reduce the diseases of the fertilized eggs and improve hatchability. Furthermore, an adopted octopus industrialized cultivator for the fertilized eggs of the octopuses can be conveniently moved, so that cost is low, sterilization and desinsection can be performed by a high concentration medicated bath, the infringement of parasites to the octopus eggs which have relatively long hatching periods can be greatly reduced, and the adopted octopus industrialized cultivator is particularly suitable for hatching the octopus eggs on a large scale. By adopting hidden matters, the energy loss of octopus young bodies caused by swinging can be reduced, and the growth speed of the octopus young bodies can be improved. Male and female octopuses are bred in an isolated mode in the step of cultivating the adults at the controlled temperature, so that the mutual killing and energy loss caused by mating can be avoided, and the weight increment of finished octopuses is facilitated. The double-harvest-one-year industrialized culture method for the octopuses has the advantages of industrialization value, short production period, high hatchability and fewer diseases.

The invention discloses an ecological lotus root and soft-shelled turtle coexistence culture method, which includes the following steps: (1) preparation of a culture pond: the area of the culture pond is 3 mu to 5 mu, the pond depth is 1.2m to 1.5m, baffles are laid around the pond bank, and after the pond is constructed, the bottom soil is dug loose by 15cm to 20cm deep; a feeding platform and a sunning platform need to be built on the culture pond; (2) planting of lotus roots: in January or February, the lotus roots are planted into the pond bottom, the planting area of the lotus roots is one third to half of the pond area, the water level is slightly low at the budding time of the lotus roots, and as the stems and leaves of the lotus roots flourish gradually, the water level is increased gradually; (3) stocking of juvenile soft-shelled turtles: in May or June, the juvenile soft-shelled turtles are chosen, 650 to 1000 juvenile soft-shelled turtles are stocked per mu, and before being stocked into the pond, the juvenile soft-shelled turtles are disinfected; (4) coexistence culture of the lotus roots and the soft-shelled turtle. The ecological lotus root and soft-shelled turtle coexistence culture method disclosed by the invention is a high-efficiency culture pattern, on one hand, the utilization rate of water resource and land resource and yield can be increased, and on the other hand, a mutual benefit relation is established between aquaculture and vegetable and fruit cultivation.

The invention discloses a rice field-based polyculture juvenile crab breeding method. The rice field-based polyculture juvenile crab breeding method comprises the following steps that S1, a suitable rice field is selected for erecting an escape-proof wall; and S2, a culture pond is spliced through cooperation of an inner ring steel frame, inner columns and inner arc plates, and the water level in the inner arc plate is limited to prevent water overflow through cooperation of a water outlet, a gate and a floating plate. Meanwhile, a communicating pipe is arranged, and water replenishment is carried out according to the water level in the inner arc plates; the rice field-based polyculture juvenile crab breeding method is scientific and reasonable in structure and safe and convenient to use, the inner ring steel frame is matched with the inner columns, the inner arc plates are assembled into the culture pond, when rainfall in the rainy season is large, the water level in the inner arc plates rises to push floating plates, the gate is driven to ascend through cooperation of a lifting plate and an adjusting rod, sealing of a water outlet is relieved, water in the inner arc plates is conveniently drained, the water level in the inner arc plates is prevented from being too high, juvenile crabs are prevented from climbing out of the inner arc plates, death of the juvenile crabs is reduced, and loss is reduced.

The invention belongs to the technical field of aquaculture, and relates to a catadromous migration salmon breeding method for migratory salmon. The method specifically comprises the following steps:(1) selection of juvenile salmons, wherein the average sampling weight is at least 25g, and the proportion of individuals smaller than 25g is not higher than 10%; (2) during the catadromous migrationperiod, adding an underwater light source at the bottom of the culture pond to ensure that the illumination intensity in the water body at the bottom of the pond is not lower than 20Lux; (3) cultivation in a catadromous migration stage, wherein a light control strategy is as follows: firstly, a light cycle strategy (LD12: 12) of 12 hours of illumination every day and 12 hours of darkness is adopted for 6 weeks, and then the light cycle strategy is converted into 24 hours of illumination every day (LD24: 0) and lasts for 6 weeks as well; and (4) completing the catadromous migration stage. According to the method, the weight of the catadromous migration juvenile salmon is controlled, light rays are controlled, and the form and physiological indexes of the catadromous migration stage are monitored. The catadromous migration rate can be increased by at least 4.9%, the survival rate after s catadromous migration is increased by at least 6.3%, and large-scale cultivation of catadromous migration salmons under the industrialized condition can be achieved.

The invention provides a bait domestication method for young sea horses. The bait domestication method comprises the four steps of preparation of a breeding pond, ecological construction of a domestication pond, installation of domestication equipment and management in the domestication period. 5 days before the juvenile sea horses enter the culture pond, the culture pond is prepared, a culture net cage and a bait table are placed, scatophagus argus and horseshoe shells are put into the culture pond, and 0.3-0.5 ppm of shrimp slices are poured into the culture pond every day until the water body is tawny. After the breeding ecology is constructed, feeding the young sea horses three times a day according to the standard that 200 young sea horses are fed into each breeding net cage, feeding the young sea horses in a satiation mode, and thoroughly cleaning a bait table 1.5 h after feeding each time. And domesticating for about 5 days until the hippocampus can actively eat opossum shrimps on the bait platform, and after domestication is finished, transferring the hippocampus into a culture pond for culture. According to the method for domesticating the ecological sea horse bait, an ecological breeding system is constructed, the breeding water body is stable, the domestication efficiency is high, water is saved, and the labor cost is reduced.

The invention discloses a temperature-controllable scylla paramamosain juvenile crab intermediate breeding device and a method. A measuring device is arranged on the left side of a breeding pond, a temperature control house is arranged on the right side of the breeding pond, and aeration equipment is arranged on the outer part of the left side of the breeding pond; a first water pipe and a first water pump are connected to the left side of the bottom of a device body, a third water pipe is connected to the outside of a water outlet of the first water pump, the rear end of the third water pipeis connected to a reservoir, a water outlet of the reservoir is fixedly connected with a filter, a second water pump is fixedly connected to the rear end of the filter, a second water pipe is fixedlyconnected to the outside of a water outlet of the second water pump, the second water pipe is connected to the temperature control house, and a through hole is formed in the bottom left side of the temperature control house to connect to the breeding pond; and the breeding pond is internally provided with a leakage plate, a filter sponge I, a zigzag net clothing and a shelter from bottom to top. The temperature and salinity can be monitored in real time and the temperature of the water body is maintained, fights between individual juvenile crab are prevented, circulating water and the aerationequipment are arranged, the survival rate of scylla paramamosain juvenile crab can be improved, and the growth and development of scylla paramamosain juvenile crab are promoted.

The invention discloses an automatic juvenile shellfish dispensing device. The automatic juvenile shellfish dispensing device comprises a discharging device and a dispenser, wherein the discharging device comprises a hopper and a juvenile shellfish separator; the juvenile shellfish separator is arranged at a discharge hole of the hopper and is provided with a plurality of secondary discharge holes; the dispenser comprises discharge channels corresponding to the secondary discharge holes; each discharge channel is connected with a dispensing unit; each dispensing unit comprises a shell, an impeller and a motor for driving the impeller to rotate; a feed hole of each shell is connected with the corresponding discharge channel; each impeller is horizontally positioned in the corresponding shell; and a juvenile shellfish dispensing hole is formed in each shell. The juvenile shellfish dispensing device can be used for juvenile shellfish dispensing operation of juvenile shellfishes in different varieties and specifications, the juvenile shellfish dispensing efficiency and uniformity are improved, the death and injury rate of the juvenile shellfishes is reduced, meanwhile, the labor intensity can be alleviated, the labor cost is saved, the operation safety is improved, and offshore juvenile shellfish mechanization is realized.

The invention relates to the technical field of river crab culture, and discloses a micro-running-water net cage culture method of juvenile crabs for large-scale river crab culture. The micro-running-water net cage culture method comprises the following steps: 1, the juvenile crabs are put into a culture device; 2, water is continuously introduced into the culture device, so that the water in theculture device keeps flowing; 3, daily scientific culture management is conducted on the juvenile crabs in the culture device; and 4, after the juvenile crabs are cultivated and formed, the juvenile crabs are taken out of the culture device to be stocked. The micro-running-water net cage culture method of the juvenile crabs for large-scale river crab culture is simple and convenient to operate, the labor intensity of workers is effectively reduced, deposited sludge can be prevented from influencing the water quality of water in a water tank, and the safety of juvenile crab culture is effectively improved.

The invention relates to a scientific releasing method of juvenile tylorrhynchus heterochaetus. The scientific releasing method of the juvenile tylorrhynchus heterochaetus comprises the following steps: (1) releasing site selection; (2) source and specification of released juvenile tylorrhynchus heterochaetus; (3) health examination of the released juvenile tylorrhynchus heterochaetus; (4) releasing time selection; (5) counting of the released juvenile tylorrhynchus heterochaetus; (6) transportation and releasing of the released juvenile tylorrhynchus heterochaetus; (7) effect evaluation of the released juvenile tylorrhynchus heterochaetus. The method accords with the biological and physiological ecological habits of the released juvenile tylorrhynchus heterochaetus; the operation method is simple, reasonable and scientific; the population quantity of the tylorrhynchus heterochaetus is restored effectively; and the method exerts greater economic, social and ecological benefits.

The invention relates to a method for increasing the in-vitro culture hatching rate of macrobrachium rosenbergii embryos. The method comprises the following steps: (1) preparing adult shrimp breedingwater; (2) preparing a parental shrimp feed; (2) breeding parental shrimps of macrobrachium rosenbergii; (4) preparing an egg washing liquid; (5) implementing an in-vitro method of embryos; and (6) implementing a hatching mode. By adopting the method provided by the invention, fertilized embryos of the macrobrachium rosenbergii are subjected to in-vitro hatching, defects caused by direct broodinghatching of mother shrimps can be reduced, the hatching rate of in-vitro culture of the macrobrachium rosenbergii can be increased, the survival rate of membrane rupture larvae of the macrobrachium rosenbergii can be increased, and a good application technique can be provided for the industry.

The invention is a breeding method of freshwater crabs under laboratory conditions. Each seed breeding crab has a weight of 30-50 g and a healthy and complete body, and the method comprises the steps:disinfecting the seed crabs with a potassium permanganate aqueous solution, performing cleaning, putting 3 male crabs and 6-9 female crabs into a breeding box with a water pool with water of a depthof 5 cm, connecting the breeding box with an aquarium filter system, maintaining water circulation, arranging a wood board which is higher than the water pool and applied to activity and inhabitancy in the breeding box of the freshwater crabs, placing a wooden nest, controlling the room temperature at 21-26 DEG C and light intensity at 80-120 Lx, performing illumination for 12 hours, breeding theplaced seed crabs in the breeding box for about 15 days, centralizing the female crabs with egg-attached pleopod in another breeding box, and hatching the larvae so as to ensure the fertility of the female crabs and the survival rate of young crabs. Artificial and efficient reproduction of experimental crabs can be achieved under laboratory conditions.

The invention discloses a juvenile crab collection system for a crab culture pond. The juvenile crab collection system comprises two strip-type buoy plates, triangular guide plates arranged at front parts of the buoy plates, a front connecting plate arranged between the front parts of the two buoy plates, a back connecting plate arranged between back parts of the two buoy plates, transverse sliding grooves formed in upper surfaces of the buoy plates and support columns slidably connected with the transverse sliding grooves; the juvenile crab collection system further comprises a left air cylinder and a right air cylinder arranged on the upper surface of the back connecting plate and two vertical traction rods; and the lower ends of the two vertical traction rods are connected with a cutting structure. The juvenile crab collection system has the characteristics that the juvenile crab collection efficiency is high, the labor intensity is effectively reduced and normal growth of elodea nuttallii is not affected.

The invention provides a mitten crab ecological breeding system which comprises a breeding pond; a plurality of hoses for conveying oxygen are laid at the bottom of the breeding pond; one end of each hose is connected with a piston through a buckle; a plurality of oxygen outlets are formed in the end face of each hose; the other end of each hose is connected with an aerator through an oxygen supply pipe; a plurality of feeding boxes are arranged in the breeding pond; the feeding boxes are connected with a guide rail through sliding blocks; the bottoms of the two ends of the guide rail are fixedly connected with a left support and a right support respectively; the end faces of the two ends of the sliding blocks are connected with a left rotating wheel and a right rotating wheel through a left cable and a right cable respectively; the left rotating wheel and the right rotating wheel pass through a left motor and a right motor respectively; a placing box is arranged at one side of the guide rail; and the placing box is connected with a second guide rail through a sliding block. By arranging the guide rail, automatic feeding of cultured fishes is achieved; and by arranging the placing box, juvenile crabs can be adaptively placed when placed, and the situation that the juvenile crabs have problems when directly placed, and then the survival rate of the juvenile crabs is affected is prevented.